Quantum Hall physics with cold atoms in cylindrical optical lattices

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Mateusz Łącki - , Österreichische Akademie der Wissenschaften, Universität Innsbruck, Jagiellonian University in Kraków (Autor:in)
  • Hannes Pichler - , Österreichische Akademie der Wissenschaften (Autor:in)
  • Antoine Sterdyniak - , Universität Innsbruck (Autor:in)
  • Andreas Lyras - , King Saud University (Autor:in)
  • Vassilis E. Lembessis - , King Saud University (Autor:in)
  • Omar Al-Dossary - , King Saud University, King Abdulaziz City for Science and Technology (Autor:in)
  • Jan Carl Budich - , Österreichische Akademie der Wissenschaften, Universität Innsbruck (Autor:in)
  • Peter Zoller - , Österreichische Akademie der Wissenschaften, Universität Innsbruck (Autor:in)

Abstract

We propose and study various realizations of a Hofstadter-Hubbard model on a cylinder geometry with fermionic cold atoms in optical lattices. The cylindrical optical lattice is created by copropagating Laguerre-Gauss beams, i.e., light beams carrying orbital angular momentum. By strong focusing of the light beams we create a real-space optical lattice in the form of rings, which are offset in energy. A second set of Laguerre-Gauss beams then induces a Raman-hopping between these rings, imprinting phases corresponding to a synthetic magnetic field (artificial gauge field). In addition, by rotating the lattice potential, we achieve a slowly varying flux through the hole of the cylinder, which allows us to probe the Hall response of the system as a realization of Laughlin's thought experiment. We study how in the presence of interactions fractional quantum Hall physics could be observed in this setup.

Details

OriginalspracheEnglisch
Aufsatznummer013604
FachzeitschriftPhysical Review A
Jahrgang93
Ausgabenummer1
PublikationsstatusVeröffentlicht - 7 Jan. 2016
Peer-Review-StatusJa
Extern publiziertJa

Schlagworte

Bibliotheksschlagworte